Proof press



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PROOF PRESS Flled Oct l0, 1927 bzf J/ l/m7@ jffaer Dec. 25, 1934.

R. o. vANbERcooK Er AL 1,985,701

. PROOF PRESS 8 Sheets-Sheet 2 Filed oct. 10, 1927 Dec. 25, 1934. R'. o.vANDERcooK ET Al.

PROOF PRESS led Oct. 10, 1927 8 Sheets-Sheet 3 Dec. 25,. 1934. R QVANDERCQK Er AL 1,985,701

`PROOF PRESS Filed Oct. 10, 1927 8 Sheets-Sheet 4 PROOF PRESS 8Sheets-Sheet 5 DeC- 25, 1934 R. o. vANDERcooK ET AL Filed Oct. 10, 1927DCC 25, 1934 R. o. vANDl-:RcooK E1' AL 1,985,701

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PROOF PRESS lFiled Oct. lO, 1927 8 Sheets-Sheet 7 Dec. 25, 1934.- R. o.vANDERcooK ET AL PROOF PRES S Filed Oct. l0, 1927 8 Sheets-Sheet 8Patented Dec. 25, 1934 VParr-:rrr OFFICE PROOF PRESS Robert O.Vandercook, Edward 0. Vandercook, Frederick R. Vandercook, and David D.Vandercook, Chicago, Ill. e

Application October 10, 1927, Serial No. 225,287

2s claims. (Crm1- 269) l Fig. 10, isa side elevation ofy certain inkingOur invention relates to proof presses.

` One of the Objects of the invention is to provide a simple, practicaland advantageous construction of proof press.

for the operation of `thevpress so that "the printing element.' such` asthe roller, may be readily lifted so as to .avoid `the form, wheneverdesired, on the outor printing stroke Of such printing element orroller. 1 i Another object of. the invention is to arrange for thesimple and effective automatic lifting of the printing element or rolleron the back stroke, after the proof 4hasbeen printedby the forward orout stroke ofsuch element or roller.

' Another objectofthe invention is'to arrange for thefeffectiv'eoperation and control and inking of :the inking rollers.

VAnother object of the invention isto arrange for 'the ready f liftingof certain of the inking rollers so kthat theywill not crease orotherwise injure other rollers;

Another object of` the invention to arrange for the easy and readylifting of all'of the ink- 'ingfrollersi Y Another object oftheinvention is to arrange for the driving or rotation of the inkingrollers either by-power drivenmmeans or bythe operation of the press.Another object of the invention is to arrange for the readybodilyremoval of the inking rollers, or certain o-f them, to permit themto be washed, or the ink changed, or for other purposes.

lInf the accompanying drawings:

Fig. 1 is aA side elevation of a proof press embodying our invention;

Fig; 2i`s a plan View of the central portion Of the `same on an enlargedscale, Fig. 2 being taken on line 2"--2 in Fig. 3; Fig. A3 is a sideelevation of an endfportion Of the device; n f Y i Fig. fi is a sideelevation ofthe press looked at from the side oppositel the side shownin Figs. 1 ands; p y L i Fig." 5 is a vertical section taken on line 5 5inFig.2;` '4 j p Fig. 6 is a cross section taken on `line 6-6 in Fig.`1, but on an enlarged" scale;

, Fig. 7 ismacross section taken `on line 7--7 in Figl`2; f

yFig. 8 `is a cross section taken on line 23g-8 in.

Fig. 2; i

Fig. 9; is aview of a detail of construction, said Fglil''lfilggtken01.1 11369-9 in. Fgfgl, .f

Another `Object of the invention is to arrange l rollers removed-fromthe machine; i i Fig 11 is a side elevation of other inking rollersremoved from the machine; l y Y, i

Fig. 12 isa sectional View showing the rollers and frame therefor`illustrated-in Fig. 10, said Fig. 12 being taken Online 12V-12in Fig.13

Fig. 13 is an end View of the mechanism shown in Fig.` 12, and i l,Fig.14 isla. view of a detail of construction. Fig. 15 is a modificationof the arrangement shown in Fig. 13; and` .Y

Fig. 16 is `a detail of construction. Referring `to the drawings, weshowa machine having a mainbodyfportion 1 and a bed 2. At one end, thelefthand end in Fig. 1, there is shown a paper support 3 on which is tobemounted the paper to be fed to the press forthe taking of proofs. Atthe; other` end, the righthand end inFig. 1, `there `iskshowna bracket 4having a holder or plate 5 on ywhich is toA be delivered the sheetsronwhich the proof has been printed. A printingelernent or roll 6 is` shownmounted above'the bed 2 and arranged for travel along the same. Thisroller' or cylinder 6 is mounted on a traveling frame 7, which isprovided with wheels 8, 8 and 9, 9 running on-tracks 10, 10 at oppositesides of the bed 2, so that the traveling carriage '7 may be moved backandforth along the bed 2 and over the form which is understood to beproperly placed in position on saidbed, said form being shown in thedrawings (Fig. `2) at 11. A rack 12 is provided at one sideof thema'chine and a gear 13 is provided on the rotary cylinder 6 and thelatter is provided with a handle `14'by which `the cylinder 6 may beturned and be caused to move in one` direction or the other over the bed2, as desired. t i The cylinder 6 is preferably arranged so that .it maybe lifted from, the form,` if desired, on the forward or printing strokeor movement, that is; on the stroke or movement to the right, referringto Fig; 1, duringiwhichi stroke" or movement the proof vwill be printed`when the machine is operated so `as to print. By thus arranging so thatthe cylinder maybe lifted during` the forward or printing stroke, at`such times, of course,v the proof will not be printed, because the paperwill be elevated above the form onthe bed. This operation is desirable,however, in order that the `forrnrnay be inked prepara-tory to printingby the inking rollers, it being seen that by moving the carriagecarrying the cylinder 6 and the inking rollers,` which will be described`hereinafter, in a forward direction withthecylinder sired by the inkingrollers. The arrangement also preferably provides for the automaticlifting of the printing cylinder 6 upon each return stroke,

so that when the apparatus is arranged for printing and the cylinder isdown so that the paper carried by it will print by traveling over theform, the cylinderwillbe automatically liftedvon the returnstroke so.`that there will' be no interference or spoiling of the printing done bythe forward stroke.

In the arrangement shown, the cylinder 6 has its axis 15 mounted in theside members-"16 off the traveling carriage '7 and. these. members .716are pivoted at 1'7 so that they may'loe/elevatedY or lowered to raiseand lower the cylinder 6 (Fig. 7). Springs 19 are arranged to act ,upona piston head 20, which in turn' acts" 'on' ther underside of members16, so that'the spring19. tends normally to elevate members 16 andthereby lift the cylinder" 6. rock shaftA 21 carriescam members 22having flat surfaces 2'3" cooperating withl surfaces or abutments 24`on1tl1emenlbers 16. Thus, by turning sh`aft"211 so'` that surfaces 23will come adjacent to surfaces 24; springsll may elevate membersv 161andtherebylift the roller or cylinder 6. Similarly, by turning` shaft 2'1so:that the round? orv remaining portion of cams 22 will contact withsurfaces' 24, the-members-16 willbe depressed and cylinder l'6-.will -beaccordingly lowered and thus placedl 'in' position to operate upon theprintingform carried by the bed 2.

Shaft 2'1 is controlled' by a foot lever 275 (Fig. 1f) projecting fromone-side of' themachine and vthis lever is'connected by link 28" withanfarm 29V which i`s' carriedE by shaft' 30- so'4 that by' operatinglever 27T, arm-29l may be swung? down and shaft' 30 turnedv so that alever' 31' (Figs 4) on shaft''will be swung,t'obririgV cam 32'. on saidlever 31 into andI out"l of? the path of travel of a roller 33" onan=arm34 connected to links k35, 'i'whereoffthe'liilk 36`is-on theend'of'shaft 21. Thus, when` foot lever27 is up, cylinder 6 will bedown-'because cam- 32 will bein anelevated position; (asshownlinliig. 4)an'dro'ller' 33 lwill pass beneath itvwhen' carriage Tisoutwardly or'ina printing direction (to the left' in Fig. 4) asa result ofl which' arm34' will remain' in aydown po'sitibn and shaftZllinla positiom (shown inFig. 71T inl whichi the-round portion ofN cam 22y is in Contact withabutment 24. However, when foot lever' 257? is depressed; cylinder 6'will be lifted sd asA to`4 raise' theip'a'pe'r froml the` form whenthe*V carriage 'lfis rn'oVed to the left' (FigiY 4)" or as; itA may b'eterme'd. moved in a printingdirectin.: This'` is." due` toi the'yfactthatl when foot lever 27 is depressed, it-willca'use. arm 31 toswing? dbw-ny and pla'c'e cam 32 in'A the path lof rollerA 33l as; thelatter* moves outwardly', as a ifesul-t off? which roller' 33 will'slide upwardly' on inclined 'cam' surface 32a', thereby' forcing armupwardly'andrlturningi shaft 21' in a position causing.' flatorsicutaway1 surface 23 tot-contact with` surface 24 andthereby permitsprings 19 t-swi'rl'gfllnembers 16" upwardly' and lift" cylinder'fi. theoutward movement ofthe traveling carriage may' take' place` with' the'printing' roller 65,-.i'h`la-dwnfpsition to!perforrnv `a printingoperation;V 01 itfma'ytake place withl'thefprinting 'roller-'in 'anuppositionso' that' printing will not be tiene, this being accordingasthefoot 1eve1- 25T isvin an' upf-or a downposition.

When the' printing' movement or stroke takes plfte'lwithfthefprintin'g'- roller 6 in; an up or nonprinting position, the rollerwill remain automatically in this position during substantially theentire printing stroke and also during the return stroke. However, whenthe outward or printing stroke takes place with the printing cylinder ina down or printing position, said roller will be automatically elevatedat or near the outward end of the printinggmovement, so that the returnstroke will be with the printing cylinder elevated, notwithstanding theprinting stroke was with that cylinder depressed.

This may be accomplished by suitable mechanisml at or near the outwardend of the printing stroke, as, for example, a swinging lever 40pivotally mounted ona shaft 41 and controlled by a spring 42, so thatlever 40 is normally maintained in a lowered position, that is, with itslefthand end, Fig. 4, downwardly. A cam 43 is carried at the end oflever 40 and this cam 43 is in such position that when the travelingcarriage with its roller 6 'is proceeding outwardly. withnthev cylinderin non-printing position. and-.therolleriBS elevated, said roller 33willpass'overnthe top'of cam 43 and not be operated by the' same,.sothatroller 33` will maintainthe same position onthe l return stroke and thecylinder dwillaccordingl'y be elevated and in non-printingpositio-nonsucli return stroke. However, whenttheprintingzcyl.- inder 6is in a lowered or printing positionzon' the out-stroke, roller 33 willstrikextlie' undersidefof cam 43 and will move said cam upwardly,thereby swinging lever 40 so that roller33'mayf pass beyond the outer orfar end of. cam 43. However, when roller 33 passes beyond the end-of cam43, Spring 42 will depress the cam'end of lever 40fand the roller 33 onits back. or return4 stroke will strike against the cam surface 43a, asa: result of which roller 33 will be movedzupwardly and arm 34 will belifted and will cooperate with the mechanism, as previously described,so as to permit springs 19 to elevate members l6 and thereby cause theprinting cylinder to be lifted so that it` will return in an elevated ornon-printing position.

' Reference will now be made to the inking mechanism. Referring first toFigs. 1, 5 and 8, we show an inking roll 50, arranged inconnec'- tionwith the frame or bed of the machine so as to cooperate with inklingrollers on the traveling carriage 'l carrying the printing roll,- aspreviously referred to. This inking roll is preferably drivencontinuously and to such end may be connected by a sprocket chain 51with a drive shaft 52, which is driven by a belt 53 running to a primemover, such as an electric motor 54, which is shown mounted on the bed 1of the machine; An idler 55 is arranged to take up slack of the belt 53and an idler 56 is arranged` to take up slack in the sprocket chain 5l'.The idler 55 may be mounted on a pivotallyy supported arm 57 controlledby a spring 58.

For the purpose of permitting adjustment thek inking roll 50 may bemounted on a swinging arm 59 pivoted at 60 and held normally in positionby a second swinging arm 61. Thelatter is pivotally mounted on a shaft62' and is preferably provided -with an adjusting screw 63 adapted tomake contact with and cooperate with swinging arm 59. Stops 64, 64 arearranged` on opposite sides of'the arm 61. A hand lever 65is'preferably` mounted on the end of shaft 62 so that shaft 62 may beturned by hand lever 65. Thus, by turning shaft 62 in one way or theother the arm 61 is caused to swing to one side or the other so as tomake contact with one of the stops 64 and inl this posilio tion theinking roller'50 will be lowered Vslightly s'o as to be'out of contactwithother inking rollers to b e presently described. When handle'65 isadjusted so -as to vcausevarm 61 to standupright, as shown'in Fig. 5,the adjusting screw 63 will hold armf59 inlanelevated position so asftoraise inking roller l to' make Contact with thelother rollers referredto. `Adjusting screw 63'maybe adjusted 'solas to secure the desiredaccurate contact between vroll 50- and theother rolls mentioned. Bylthis arrangementthe .roll 50 may be rotated continuouslyand mayalsobeadjusted to amoderate extent vertically so as to :be in position" tocooperate-or notto cooperatefwithother inkingrolls. i f

Theother inking rolls referredto are the rolls 67, 68, Figs. 3, 5, 8and-'13. These rolls are `carried by a roll frame 69, whichisipreferably mounted on and carried by the traveling carriage 7,`butwhich is preferably made adjustable relatively to said carriage and alsopreferablymade bodily removable therefrom. The roll frame or holder 69may carry the rolls '67 and 68 by having underneath bearings for thesame, which may be formed by plates 70 and 71 ,arranged on the undersideof holder 69`and secured inposition by bolts 72, the shafts orspindles67a and fbeing between these plates or members 70 and 71. f L

f When the traveling carriage 7 is at its inner endmost position, asshown inil'ig's.` 3 'and 5,

the roll 50 will Abe in contactiwith the rolls 67` and 68 when said roll50 isi'adjusted to itsupper or`inking position, as shown in Fig.` 5, Inthis condition' the roll 50 will Continuously turn the roll 67, which,through-another roll to be described, will turn the roll "'68 andthusthe two rolls? 67 and 68 will be-continuously turned and the inkspread on themas longv as may be desired while the print'ingcylinder isin its innermostposition; y l Y *The rolls 67 and 68 repreferablyprovided with gearteeth or pinions 75, l ywhich mesh with a rack 76fonthegmachine frameZ. In this way the rolls 67 and 68 will-be turned bythe movement of the carriage 7 over the bedof themachine, this `turningbeing due to` thepinions 75 traveling over'rack 76, the roll 67atsuchtime being separated from roll 50 and hence not receiving any turningyaction from the same.

'Ifo insure inking roll teeth 75 meshing properly with rack 76 wheninkirig carriage begins to travel over rack 76 and inking rolls 67and`68 are to be turned by rack `76 instead of by roll 50, astartingtooth arrangement is provided at end of rack 76 (FigsfZ),l5'a:`rid"14)`. This consists of several teeth 76a, 76b and 76C, more`or less out feo away, the end Qnesbeingmost cut, so that if gear teeth75 do not register so as to mesh pro-perly with teeth'76, the cut awayportions of these startingteeth wi1l`accommodatethe out of registerteeth" 75 and adjustv them Ainto place. A`

pivoted arm or'le'ver 77 controlled by spring 77a is arranged to engagethe inking roll teeth 75 and assist in bringing theri into proper meshwith rack` teeth ,76. g i

The roll frame or holder 69 is preferably provided with handles 78 bywhich it maybe bodily lifted `,and even-removed *from thecarriage 7, aswill'ibe more fully pointed'but 'hereinafter'.

{Other` inking rolls 79, 80 and 8l are also-preferablyprovided, -theroll V79"beir1"g Varranged for cooperation with roll 1r67 and rollSil-arranged betweenand for cooperation with rolls 67l and 68, the roll`81 beingpreferably arranged for cooperation with roll 68. Rolls "79 and81A are lcomplish both results.

preferably relatively small rolls to which the ink may be applied in therst instance. Roll 80 is a vibratory roll having a certain amount oflongitudinal: movement in order to better spread and` distribute theink. This longitudinal movement on the part of roll 80 may be secured bythe construction shown inFig.` 12, `in which a pin 83 on an adjustingscrew84 may t vin an irregular' annular slot 85 in roll 80 so that thelongitudinal movement.

The rolls 79, 80 and 8l are preferably mounted in a separate orsupplemental roll holder or frame 86. This is preferably carried by thefirst mentioned roll frame 69 and is preferably made adjustablerelatively thereto and also bodilyfremovable therefrom.

rotation of said roll will cause its back and forth matter of furtherand specific improvement, the roll holder or frame 86 is `provided withend portions which t inappropriate spaces in the frame 69,'as shown inFig. 13, adjusting screws 87 being preferably provided to limit thelongitudinal movement of said end portions or even substantially preventsuch movement. The set screws 87, however, are not actually tightenedagainst the end members, but are adjusted so as to permit said members86 to be lifted relatively to holder 69 and even lifted entirely `out ofthe same, if desired. Thus, by arranging the holder inposition in holder69, the rolls 79, 80 and 81 will make contact and cooperate with rolls67 and 68 and will act in spreading and distributing the ink on thelatter, whether the latter be turned by the continuously rotating roll50, or turned by movement of thecarriage back and forth on the bed'.When the holder 86 yis lifted relativelyto holder 69, the rolls 79, 8Gand 81 will be separated from rolls 67 and 68. l

As a preferred arrangement, provision is made for the lifting of rollholder 69 relatively to traveling carriage 7 and also for liftingsupplemental roll holder 86 relatively to roll holder 69 and thisis'preferably done by mechanism which will ac- In the arrangement shown,which constitutes one of a variety of mechanisms for accompishng thisresult, the carriage 7 is provided with a pair of longitudinallyextending swinging arms or members 90, Figs. 5, 7 and18, these membersbeing pivoted at 91 and extending lengthwise to and through the holder69. The latteris provided with transverse bars or rods 92, `which arenormally in position above the arms so that by swinging the arms 90upwardly they will be brought into contact with the cross bars or rods92. The supplemental holder 86 is provided with cross bars or rods 94and toggle lifting members 95 are arranged below the ends of the members94 but close to the same soi that` by lifting the toggle members 95contact will be made with the cross members 94 so that the same may belifted. i .The carriage 7 is provided withupwardly extending standards96, at theupper end of which l a cross shaft 97 is mounted. This shaft971caroted at 106 to the uprights or standards 96. The

links 100 also preferably have lifting connections with., arms 90, as,for example, by` `providing bezin Contact with. other rolls. When,however,

the handle 101 is swung to the left, or upwardly asv it. may be calledas shown in Figs. 7 and 8, the links 10.0 will be elevated and pins 103carried therebywill be moved in slots 104 until they reach the; upperends'of said slots at which time the members 95 will be moved upwardlyto engage the cross-bars 94, and then a further upward movement ofilinksV 190 will lift holder 85, as shown in said Figs. 7 and 8. Thersame upward movementof links IOO'will cause pins 107. to be engaged bythe bottom of slots 108v so that the links 100 become effective inraising arms 90 and thereby causing said arms to act against cross-bars92 and lift the same and thereby lift the main roll holder 69.. Thiselevated position isshown in Figs. 7 and 8'.. In suchposition, as bestshown in Fig. 8, the rollsy 67S and. 68 Vwill be lifted so that the roll67 willzbef out of Contact with roll 50. f Also, the holder 86'will beso lifted that the. rolls 79, 80 and 8L will be out of. Contact withrolls 67 and. 68. In this'way'the rolls will be all separated from eachother sothat they will not gum nor stick to one another, nor causegrooves or depressions to be formed in any of the rolls. Furthermore, ifdesired',.the. holder 86 may be lifted entirely out of holder 69- andaway from vthe machine by taking hold of.' the projecting ends 94a ofcross-bars 94 (Figs-Bland 11) and lifting holder 86, by these projectingends. In this way rolls 79, and 81 mayibewashed and. cleaned, ifdesired. Furthermore, the main roll' holder 69 may be liftedy bodilyfrom `the machine, if desired, by taking. hold of the handles 78 andlifting the roll holder out of the machine; This may be done either withthe holder 86 inplace, or out of place, in holder 69. In thiscase thelocking clips 110 pivoted at 111 to arms-90 and controlled by springs112, may be lifted or yswung upwardly so as to become disengaged fromcross-barsv 92 and thereby permit holder 69 to be moved or Yslid out ofthe machine tothe right, referring to Figs. 3, 7. and 8. When holder 69is replaced in the machine, clips 110 will be swung upwardlyto permitends of cross-bars 92 to slip underneath said clips and be then engagedbythe same, as shown in Figs. 3 and 7. `'T 'he removal of the holder 69will permit rolls 67 and 681 to be washed and cleaned. .If desired, therupper or supplemental holder 86 maybe lifted by links 1.00 withoutlifting the lower or main holderr69 by swinging handle 109 to asubstantially vertical position, in which case links will cause togglemembers 95 to engage bar members 94'and' elevate holder 86 before pins107 are engaged by the lower end of. slots 108. Thus 1t will be seenthat the various inking rolls may be manipulated and adjusted in orderto secure desirable results in the operation of the machine. Removal ofholder 69vwith all inking rolls permits another complete inking unit'tobe substituted in its place. Thus dilferent color inks may be readilyused, without the need of washing ink rolls, one inking unit having onecolor ink and another another color, and these beingy interchangeableinthe machine.

an arrangement for engaging the paper with. the printing: cylinden; we:show` a foot lever 115, Fig. 1, controlled by a. spring 116; and: con.-nected with a rod 117, which in turn is connected with a lever armAllpivoted at 1,19. Arm 118 is adapted to cooperate with roller 120, Fig.3*, on i.

bell crank 121 pivoted' at 122' oni printing cylinder 6. Bell crank 121controls a spring controlled paper clip 1--2-5.,l Fig. 5, on` thecylinder 6, so that when bell crank 12-1 is swung upwardly by lever 118springy clip 125 will be elevated so as` to permit a sheet of paper tobe interposed between clip 125' and theV cylinder surface. Clips 125carries an abutment 127 to stop the forward movement of the paper. Thus,when thev cylinder 6 is in position to receive a sheet of paper, asshownY in Figs. 3 and'Y 5,` the foot treadle. 115 is depressed, therebylifting clip 125 andv permitting insertion of, paper, after whichtreadle is released pere mitting it to be moved upwardly by spring` 116,whereupon clip 1251 is depressed by spring 129, thereby causing saidclip to engage the sheet of. paper-and hold: it tothe cylinder. Thecylinder is then turned by the crank arm 14 so as to-move the cylinderand its carriage along the bed of the machine. At the opposite end, thatis the righthand end in Fig. l, the roller 1-31, Fig. 7', onr bell crank12-1 will strike an abutment 132-, Figs. 1 and 9, and cause said bellcrank 121. to be swung andthe paper clip separated so as to release thepaper.

In Fig. 15 we show a modified form of the removable and interchangeableinking roll unit, onev formy of which is shown in Fig. 13, andpreviously described. In the modification of Fig. l5 the bearing for'theink roll shaft 67a and 682L is formed by members or plates 70a and 71asimilar to the plates or members 70 and 71, respectivelyv in Fig. 13.AIn this latter iigure,.however, arrangement is made to mount or supportthis bearing composed of members 70a and 71e more independently of theinking roll unit than in the arrangement of Fig. 13. To suchend themembers 70a and 71@L are held together by screws- 72a, which extendsimply through the members 70EL and 71a and do not extend into the mainbody portionv of the unit or holder 69, as in the case of Fig. 13. Inthis way the bearing for the rollers 67l and 68may be spaced from thebody mem ber 69 and adjusted relatively thereto for various purposes. v

For such spacing and adjustment various means can be used, but a simplearrangement is to provide two (2) screws, 140, 140 which` pass throughthe bottomy portion of member 69 and engage one of the members 70a and71a as, for example, the lower member '71, passing through apertures 141in member 70e, which permit the screws to move freely with reference tosaid member 70a. Also another screw 143; is provided and this likewisepasses through the lower portion. of member 69 and is adaptedv tocontact with and engage the top surface of member 70a. All of thesescrews 140, 1.40 and 143 may be turned relatively to member 69, and tosuch end are provided with slotted heads, as shown, whereby spacing andadjustment of the bearing may bearranged, as desired.

Oil openings 144 are preferably provided in member 70a for oilingjournals 67e and 68e, and slots` or grooves 145 are alsopreferably-provided in member 69 forV permitting access to apertures144by an oil can, or otherwise.

Referring to Fig. 16', we show an arrangement for providing the presswith aA frisket frame arrangement. This comprises a pair of bars 147 yand. 148, whereof the'upper bar 147 isprovided with pins 149 adapted tot into, apertures 150,

in lower bar 148. Upper bar 147 is also provided with knurled thumbscrews 151, bywhich it may be readily raised and lowered relatively tolower bar 148 and iitted in position upon the same.

Also bar 148 is provided with a threaded bolt 153 adapted to bescrewedoutwardly. from-tile end of bar 148 a greater or less distance.By this arrangement vbar 148 may be tted to the bed or frame 2 of thepress, as shown in Fig. 2 and bolt 153 may be adjusted so as to hold bar148` firmly in position. Bar 148 is alsoprovided with apertures 154 intowhich fit springs 155for holding a chase of usual design in position.Bar` 148 is also provided with pins 157 adapted. to fit into apertures158 in upper bar 147. A sheet or iilm` 159 of transparent material,suchas celluloid, or more or less transparent paper, or the like,fis shownbetween bars 147 and 148.

In this way arrangement may be made for accurately placing printingelements in the chase or other holding device in order to use differentcolored inks. The arrangement is something of a frisket framearrangement and permits a sheet of transparent material 159fto be -ttedbetween the members 147 and 148 and held in position by` pressing member147 down so that pins 157 punch apertures in sheet 159 and so'held thesame in position. At this time a proof is taken of the printing elementin position in the press. The sheet 159 is then removed by removingupper member 147 and the press is used in connection with such printingelement. When another printing element is to be used it is placed in thepress and adjusted generally in position and then the film 159^with theproof on it is placed in position with the previously made apertures inregisterwith pins 157- and then the yprinting velement is accuratelyadjustedzby means of the proof vor arms for mounting the printingelement on` the carriage for vertical relative movement, and automaticmeans whereby the printing element may be normally held out of printing?position during substantiallythe entire forward or printing stroke Aofthe carriage. v l

2. A device of the class specied having a traveling carriage,ya printingelement, pivoted arms for mounting theprinting element on the carriagefor `vertical `relative movement, vand automatic mechanism by which saidcylinder may be normally moved `out of printing position ,for theprinting movement of the carriage and also means for maintaining thesaid cylinder in such position during such printing-movement.

'3. A device 'of ,the class specified having a traveling carriage, aprinting element,pivoted arms for mounting the printing element` on thecarriage for vertical relative movement, and automatic 'mechanism bywhichthe cylinder may -bel adjusted Vtransversely of theV direction ofmotion of the 'carriage so as to place said cylinder in`printingor..non-printing ,position,;but to n or.-

mally hold said cylinder `in non-printing position,`

y `4. Adevice` travelingcarriage,` a printing element, pivoted arms formounting the printing element on the carriage for vertical relativemovement, and automatic mechanism by which the cylinder may be adjustedtoward and away from the printing bed of the machine to place thecylinder in printing and non-printingpositions, but tc'nornally holdsaid cylinder non-printing. position.

5. A device of the classspecied having a traveling carriage providedwith a printing cylinder and also having automatic mechanism by whichthe cylinder is normallyraised relatively to the carriage for theprinting movement of` the carriage and maintainedin such raisedpositionduring such movement. Y v. Y l 6. A vmachine of the classspecified having a traveling carriage provided withl a printing cylinderand spring means on said carriage tending tolmove and hold the cylinderout of printing position incombinationwith Lantomatic means for movingthe cylinder intoprinting position in opposition to said spring means. AY

7.1A machine of the classspvecifed having a. traveling carriage providedwith a printing cylinder and also provided with spring means carried bythe said carriage, and'tending to` force the cylinder out of printingposition, and cam means adapted to move` the;cvlin`de1` intovprinti'ngposirtion in opposition to` said springfvmeans, in com- -cylinder out ofprintinggpositinpand cam means adaptedto move the-Cylinderir'itoprintingposition inopposition to `said spring'meanS, :incombination with mechanism on 'the machine frame for` controllingsaidzcam meansso Vasvto causethe printing"cylinder-` to moveinto orloutlof printing position, said mechanism being( adapted to actuate'thecam means to` so move the,printing `cylinder into non-printing`position'during the forward or printing stroke ofjthe'lcarriage.`

9. A machine ofthe class specified havingV a traveling carriage providedwith a printing cylin- .der Aandalso provided with spring means carriedbythe carriage and tendingtoffor'ce the `cylinder out of printingposition, and cam means on one end of` the machine adapted to"movethecylinder hito-printing position in opposition to said springmeans in combination with mechanism on the machine frame for controllingsaid cam means so as tov cause the movement ofthe printing cylinder intoor out of printing position, said mechanismbeing adapted to -actuatathecam means so as to. moveA the. yprinting cylinder linto non-printing`position during the forward or printing` stroke of the carriage,thesaid mecha- Vnism` being adapted for` operation bythe operator so asto cause the movementv of. the printing cylinder out of printingposition during the printing stroke to take place atthe option of theoperator.` g A' 10. AA machine of the class specied having a travelingcarriage provided with a printing cylinder mounted for adjustment towardand away from 'thejprinting form andalso provided with Spring meanstending ,to move and holdthelprintinexcylinder; out, of. printing,position and cam of `the classspecied having a` ing formv into printingposition and holding the samein Ysuch positionv in combination with acontrolling lever carriage by the carriage and mounted for movement toactuate said cam means;l and a cam device on the machine frame foractuating said controllinglever. f

11. A machine of the' class specified having a traveling carriageprovided with aprinting 'cylindermo-unted for adjustment toward and awayfrom the printing formand also providedl'with spring means tending-*tomove andv hold theprint ing cylinder-` outof printing'- positionand'cam' means for movingthecy/linder toward the printing form intoprinting position and holding the same in suchposition' in combinationwith' a`- controlling lever carried bythe'carriage and mountedfor'movement to actuateA said cam means, and a cam `device on the'machine frame for actuating said` controllingv lever, said cam devicelbeingk adapted-to` operate thecylinder controlling' cam means` to*permit the-spring means tomove the cylinder out of printing position onthe forwardor printing strokev of" they carriage.

'Y 1:2". A machine-.of the class 'specified having a traveling' carriageprovidedL withl a printing cylinderv mounted for' adjustment' toward andaway fromk the printing 4form* and also providedy with springmeans'tend'ing tomoveland hold the-'printingcylinder out of printing'position and cam means'formoving' the-cylinder toward the printing form"intolprinting positionand holding the same inf such positionl incombination with a controlling levercarried" by the carriage and mountedfor movement to actuate said cam means, andlacam deviceI on the machinesframe for vactua-ting said controlling'lever; said camdevice being:'adaptedlto operate thecylinder, controlling cam"v means to permit thespring' means to move'the cylinder out of printing position onftheforward orprinting 'stroke of thecarriage;v said' cam devicebeingprovided with" means f for: operation byfthe machine operator; i

7"1'3". Ai'machineofthe-class specified having a traveling carriageprovided with a printingf'cylinderi mountedl for adjustment towardl andIaway f-idm'thetprinting form andl also provided with springmeans'tendingtomove andhold theprinting cylinder out; of' printingfposition* and4 cammeans lfor moving thecylindertoward` the printirig form-L intofprintingposition andA holding thesameinsuchpositionin)combination'with'a'controlling'levercarried by theicarriage and vmounted for' movement to a'ctuate'said` cam means, andacamdevice' on the machine frame for actuating said" controlling" lever',said cam deviceA being adapted tir` 'operate thel cylinderv controllingcam means to permit the spring means tomove the cylinder outof'iprinting position on* the-'forward orprinting-strokeof the carriage;saidv cam device being provided: with means' for operationy byv themachine operator,l said last mentionedv means comprising a foot leverandk a link connected therewithV and a'swinging arml connected with saidlink andl carrying a' swinging lever which carries said cam device.

14. A machine off the"-'clz`i'ssspecified having a traveling carriagejprovidedL with a printing cyl'- inder mounted for adjustment towardandaway from' the printing form and-v also provided withspringineanstending tolmove andf-lioldsaid cyl*- inder outoffprintingpositionland -cam means for moving' the cylinder'intof=`printing positionin opposition-tofsai'dspr-ingmeans;incombinationwith mechanism onthe machine frame'forautomatimeans forimoving the cylinderl toward the print-1' cally controlling the position?of.` said cylinder, said mechanismcomprisingi avertically'adjiifstabl'ey arm on the traveling carriage connected withsaid cam means for actuating? the same, and a springy the-arm carriedtherebyto-operatethe cam means on theA carriage when the latter startson its return movement. i r

1151. A- machine ofv the classspecied having ai printing cylinder andinking mechanism, support on which thev printing cylinder is 'mountedindependentlyf of the inking' mechanism comprising a` comrnony framehaving al'ever. mounting'.

16.1 A machine of the class' specified having. al irisket frame mountedonthe bed of the machina. means'or securing the frame` im p'ositio'nfon. the machinev bed, and means for holding an impression sheetito' thefrisket frame..

17. TheA combination withL ai printing press of. an impression. sheetholder mounted in connectiony with the-bedj ofi the machine. andcomprising: a. lower bar withmeans for detachable connection withth'ebed' and an' upper bar'with means' for mounting; in. position on. thelower bar forholding the impression sheet in position.

18. A machine of the class' specifiedhaving. a' traveling carriage,vside members pivotally` mountedi thereon,- a print-ing cylinderjourn'aledi and'` supported-inf the said` side. members,` andi twoseparatemeans;.eachl o'f. which is selectively adapted' eitheritolraiseisaid cyli'nd'en or allow same: to remain. ini apreviou'sly loweredposition.A

19. A machine of th'ecla'ss specified having a1 traveling'carriage;lside members pivot'all-y'mounted thereon, a printing cylinderjournaled'and supportedI in the said? sidemembers, means for actuatingthe' side 'members to raise" or lower'the said: cylinder',v saidvmean'scomprisingy cams" en@ gagingthesidemembersfor lowering thecylinder; and springsa'cting in opposition thereto for raising the saidoylindersiout' oiprinting position.

20: A- machine! of thei classl specifiedi having atravelingjcazrriage;sidemembers:pivotally-mounted thereon, a printing-'cylinder journaled` and supported in the said side members. and.automaticv means for actuating the side members'V to raise the saidcylinderor allow. same: to=remain in a. previously lowered` position.

l2l. AA machine :of the class. specified having: a travelingcari'ia'ge,side members pivotallym'ountedthereon, a printingcylinder'journaledfandfsupported in' the said side:` members; automatic meansfor actuating the side members'to raise and..-lowerv the saidcylinder',Jsaidi automatic means' comprising'. cams engaging: the: side membersand.`l springs actingzin.` oppositionf tothe said cams, and.tappet-levers.`A` onlthe machine forconltrolling'. thelv saidside-member-engaging-cainss.

22; A. device of:- thef class specified havingca traveling carriage, aprinting. element,.arms for pivotally mounting. the printingy elementonlthe carriagefand automaticfmeans. whereby the printing element may beactuatedrelative. toth'e carriage o'ut-oi printingpositionduringtheforward or printingfstroke. off? the carriage, said'fautoma'ticmeans'. including movable cams.-

23. A device of' the class specified having a traveling carriage, a1printing cylinder,- arms for pivotally mounting: the printing elementontne car-nage: andiautomatic mecnanisniibyifwliicn-me cylinder maybeadjusted relatively to the carriage so as to placej said cylinder inprinting position or allow the cylinder to remain in a previouslylowered position.y

24. A device of the class specied having a traveling carriage providedwith a printing cylinder and also having mechanism on the carriage foradjusting thecylinder relatively thereto, a

cam mounted for movement on the machine frame, associated with saidadjusting mechanism, and a foot lever arranged to control the positionof said cam.

25. A machine of the class specied having a traveling carriage providedwith a printing cylinder mounted for adjustment toward and away from theprinting form and also having means on the traveling carriage foreffecting such adjustment, and mechanism on the machine frame forcontrolling'said means, and a foot lever for operating and controllingthe said mechanism on the frame.

26. A machine of the class speciiied having a traveling carriage, sidemembers pivotally mounted thereon, a printing cylinder journaled andsupported in the said side members, means for actuating the side membersto raise and lower the said cylinder, said means comprising camsengaging the side members for lowering the cylinder, and afoot-pedal-operated rock shaft for controlling the position of saidcams.

27. A machine of the class specied having a traveling carriage, sidemembers pivotally mounted thereon, a printing cylinder journaled andsupported in the said side members, and a footpedal `for actuating theside members to control the position of the said cylinder.

28. A machine of the class described having a traveling carriage, sidemembers mounted thereon, a printing cylinder journaled and supported inthe said side members, and two separate means each of which isselectively adapted to raise said cylinder or allow same to remain in apreviously lowered position, one of the said separate means beingmanually operated and the other separate means being automaticallyoperated.

ROBERT O. VANDERCOOK. EDWARD O. VANDERCOOK. FREDERICK R. VANDERCOOK.DAVID D. VANDERCOOK.

